August boos



A'. ROOS.

FILTER.

(-No Model.)

INVENTOR ATTORNEYS n4 PETERS. Pnexommgnpw. wnmngwm ac.

WITNESSES UNITED vSTATI-3s PATENT OFFICE.

AUGUST ROOS, OF NEW YORK, N. Y.

FILTER.

Y SPECIFICATION `forming part of Letters Patent No. 278,186, dated May 2,2, 1883. Application filed annary 24, 1883. (No model.)

To all whom it may concern:

Be it known that I, AUGUST ROOS, a citizen of the United States, residing at New York, in the county and State ot' New York, have invented new and useful Improvements in Filters, ot' which the following is a specification.

This invention relates to a lter the ltering-'chamber of which can be revolved on a stationary hollow shaft, the liquid to be ltered being introduced at one end ot' 'this shaft and discharged at its opposite end.

The peculiar construction of my lter is pointed out in the following specification and illustrated in the accompanying drawings, in whichv Figure 1 represents a vertical section in the plane so a', Fig. 2. Fig. 2 is a similar section in the plane y y, Fig. l.

Similar letters-indicate corresponding parts.

In the drawings, the letter A designates a stationary shaft, which has its bearings in standards B B, rising from the bed-plate C, or which may be supported by any other suitable means. `The central part of this shaftis solid; but its ends are bored out to form channels b b', the channel b being connected to the liquidsupply pipe P, and the channel bto the liquiddischarge pipe P.

On thesolid portion of the shaft A is mounted the ltering-vessel D, the filtering material being placed into the filtering-chamber d, which is partitioned oft' from the chambers d d2 by sieves d3.

The outer surfaces of the hollow portions of the shaft A form plugs c c', which tit, respectively, into tubular shells E E', projecting from heads F F', which are rmly secured to the heads of the filtering-vessel D vby bolts fj". From the shell E extend two pipes, G Gi, in opposite directions, and the outer end of the pipe G communicates with vthe chamber d of the filtering-vessel, while the outer end ot' the pipe G* communicates with the chamber d2.

From the shell E' extend the two vpipes G G*,which communica-te with the chambers cl d2, respectively,in the same manner as the pipes G In the plugs e e are openings g g', respectively, but on opposite sides of said plugs, the opening-g in the plug c being on the upper side andthe opening g in the plug e being on the under side, as shown in Fig.V 1.

K, Fig. l, is a latch which engages with a D cavity, 7c, in the shell E and retains the filtering-vessel in position. When this latch is raised the filtering-vessel can be turned round on the shaft A. In the example shownin the drawings the latch K is hinged to one of the standards B; but said latch may be made in any form adapted to lock the filtering-vessel in the required position. In the outer ends ot' the shells E E' are formed stuffing-boxes l Z', respectively, so as to prevent leakage between the plugs c c and the shells E E. f

In the position shown in Fig. l the water or other liquid to be filtered (the stop-cocks pp being open) passes through the channel b and pipe G into the chamber d', from this chamber through the ltering material inthe chamher d into the chamber d2, thence through the pipe G'* and channel b to the discharge-pipe P. After some time the filtering material becomes charged with impurities, and in order to wash out these impurities the latch K is raised, the filtering-vessel D is turned round on the shaft A, the stop-cock p is closed, and the cleaning-cock H is opened, and the water orsother liquid admitted through the pipe l now passes through the pipe G* into the chamber d, thence through the iiltering material into the chamber d', and through the cleaningcock H into the waste-pipe J, carrying with it the impurities which have accumulatedin the filtering material. When the filtering material has thus been cleared the cleaning-cock H is closed and the stop-cock p is opened, when the filtering operation continues, as previously described.

In the example shown in the drawings the pipes G G* G G* pass into chambers d d2, which are separated from the filtering material by sieves d3. It' the openings of the pipes G G* G G* and ot' the cocks H I are protected by sieves, the tiltering-vesselmay be tilled clear up with filtering material; but by forming the chambers d d2 in the filtering-vessel a more IOO uniform distribution of the liquid to be filtered through the filtering material is effected.

What I claim as new, and desire to secure by Letters Patent, is-

1. 'Ihe combination of the bearings B, the shaft A, fixed in a stationary position in said bearings, and having channels b b formed in its ends, liquid supplyY and discharge pipes provided with stop-cocks 1) p', the filteringvessel D, capable of rotating on the shaft, and constructed with the opposite chambers, d' d?, and the cleaning-cocks H and I, connecting, respectively, with said chambers, and channels Gr Gif' G G'ii, connected and rotating with the filter, substantially as described.

2. The combination of the stationary shaft A, having the channels b b in its ends, communicating with supply and discharge pipes, respectively, the filtering-vessel D, arranged to be rotated on the stationary shaft, and com- 2o posed ofthe filtering-chamber d, the two chanibers d d2, heads F F', and cleansing-cocks H I, and the shells E E', provided with the channels G G* G G'ii, substantially as described.

In testimony whereof I have hereunto set 25 f my hand and seal in the presence of two subscribing witnesses.

AUGUST Roos. [n s] Witnesses W. HIUFF, E. F. KASTENHUBER. 

